On the Separability of Parallel Gaussian Interference Channels
Information Theory
2009-05-12 v1 math.IT
Abstract
The separability in parallel Gaussian interference channels (PGICs) is studied in this paper. We generalize the separability results in one-sided PGICs (OPGICs) by Sung \emph{et al.} to two-sided PGICs (TPGICs). Specifically, for strong and mixed TPGICs, we show necessary and sufficient conditions for the separability. For this, we show diagonal covariance matrices are sum-rate optimal for strong and mixed TPGICs.
Cite
@article{arxiv.0905.1537,
title = {On the Separability of Parallel Gaussian Interference Channels},
author = {Sang Won Choi and Sae-Young Chung},
journal= {arXiv preprint arXiv:0905.1537},
year = {2009}
}
Comments
5 pages, 1 figure, to appear in proc. IEEE ISIT, June 2009